Caritas Australia is the Catholic agency for overseas aid and development. It helps people to help themselves, regardless of race, political beliefs, gender or religion and belongs to an international network of 154 organisations in 198 countries and territories.

It works with the local people of a particular country in all of its programs. Caritas calls these local agencies 'Partners'.

Catholic Mission has two complimentary tasks - to inform the people of Australia about Mission in the world today and to raise money desperately needed for missionary work in materially poor countries.

The Confraternity of Christian Doctrine (CCD) is an Ecclesiastical Organisation of the diocese of Wollongong. It provides religious education and Christian formation for Catholic children in public schools (both primary and secondary).

The Diocesan Pastoral Council of the Diocese of Wollongong is a vital aspect of communion with the Church. Considering the pastoral questions of our day and making appropriate recommendations to the Bishop, the members of the Diocesan Pastoral Council are imbued with a pastoral spirit to aid the Bishop with the pastoral governance of the Church.

The Bishop's Office, Chancery or Curia supports the mission of the Church through service to the parishes and agencies of the Diocese in a range of communication, pastoral, liturgical, financial and administrative activities.

The Tribunal is a service of the Diocese of Wollongong to assist with the pastoral care of divorced and remarried persons seeking to have their marriage recognised in the Church, divorced persons seeking to remarry, and divorced persons seeking clarification of their standing in the Church.

The Wollongong Tribunal operates as part of the Regional Tribunal of the Catholic Church for NSW & ACT.